{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "The combined use of ZnO , Mg , MgO , and silk provides routes to classes of thin - film transistors and mechanical energy harvesters that are soluble in water and biofluids ."}
{"Chemical": ["ZnO", "Mg", "MgO"]}